Water Pump

The water pump pushes coolant from the radiator through the coolant system, into the engine and back around to the radiator. The heat that the coolant picked up from the engine is transferred to the air at the radiator. Without the water pump, the coolant just sits in the system.

How Do You Know If The Water Pump Is Going Bad?

The water pump impeller can wear out, thus no longer moving coolant around, so your car overheats. To test this. Do a cold start with Radiator cap off; you should see the fluid moving around some in the radiator. If not, then there is a good chance the internal water pump blades are gone or only a small amount left.

How Long Does A Water Pump Usually Last?

The service life of most original equipment water pumps should be 100,000 miles or longer. Some cheap replacement water pumps, however, may not last 30,000 miles before they start to leak. That’s why you should recommend a top-quality replacement water pump if a customer’s old water pump has called it quits.